baber/WOPTO huggingface dataset:
Patent GB-751723-A (GB)
Title: Processes and intermediates for the production of synthetic androgens from coniferous resin acids
IPC: C07C62/38
Filed: 1951-11-21
Abstract: The invention comprises polyhydrophenanthrones having the formula <FORM:0751723/IV(a)/1> wherein q represents the group -COCH3, with C ring unsaturation in the (1,2) position, or q represents the group <FORM:0751723/IV(a)/2> or <FORM:0751723/IV(a)/3> with C ring nuclear unsaturation in the (11,1) position, and polyhydronaphthone propionic derivatives having the formul  <FORM:0751723/IV(a)/4> and <FORM:0751723/IV(a)/5> where q represents the group -COCH3 with nuclear unsaturation in the (3,4) position, or <FORM:0751723/IV(a)/6> or <FORM:0751723/IV(a)/7> with nuclear unsaturation in the (4,10) position, and the production of compound I by heating a nuclearly mono-unsaturated ester derivative of d-pimaric, abietic, neoabietic or laevopimaric acid having the formula <FORM:0751723/IV(a)/8> wherein m  represents -CH(CH3)2, <FORM:0751723/IV(a)/9> or <FORM:0751723/IV(a)/100> and R represents an alkyl or aryl residue, with a mixture of a phenyl magnesium halide and an organic solvent to form a tertiary diphenyl carbinol, reacting said tertiary diphenyl carbinol with a halogenating or hydrohalogenating agent to form a carbinol halide <FORM:0751723/IV(a)/111> wherein m represents H, halogen or methyl, p and t represent H or halogen and n represents -CH(CH2)2, -CH=CH2, -CHOHCH2OH, -CHOHCH3, or COOH, effecting re-arrangement-dehydration of said carbinol halide by means of a dehydrating agent to form an anhydro-halide derivative, oxidizing said anhydro derivative by means of a hexavalent chromium compound at a temperature in the range 20 DEG  to 70 DEG  C. to form a polyhydrophenanthrone halide <FORM:0751723/IV(a)/122> and reacting said polyhydrophenanthrone derivative with a dehalogenating or dehydrohalogenating agent to produce compound I.  Alternatively the compound VII after treatment with a dehydrating agent to produce an anhydro-halide, is heated with a hexavalent chromium compound at a temperature greater than 70 DEG  C. to form a compound having the formula <FORM:0751723/IV(a)/133> or <FORM:0751723/IV(a)/144> which after heating with a dehalogenating or dehydrohalogenating agent form the compounds (Ia) or (Ib).  As starting materials there may be used abietic, laevo-pimaric, neoabietic and dextro-pimaric acids.  The grignardisation step may be effected between 40 DEG  to 100 DEG  C. in an organic solvent, e.g. benzene, toluene or butyl ether. Oxidation may be effected with chromium trioxide, a bichromate, chromate or chromyl compound, preferably in the presence of an ortho-phosphate producing compound such as orthophosphoric, pyrophosphoric, metaphosphoric acids and anhydrides thereof.  As dehydrating agent there may be used P2O5, acetic anhydride, sulphuric acid or toluene. Dehalogenation may be effected with zinc-acetic acid and dehydrohalogenation with pyridine mixture.  Examples describe the production of the compounds V, VII, XI, XIII, XV, XVII, I, Ia and Ib. Specifications 751,830 and 751,831 are referred to.
Patent GB-223666-A (GB)
Title: Improvements in paving blocks for road surfaces, pavements, floors, bridges, gradients or the like
IPC: E01C5/22
Filed: 1923-08-03
Abstract: 223,666. Cox, L., and Burt, E. J. Aug. 3, 1923. Composite blocks for pavings. An upper rubber pad b is provided with a series of parallel ribs c and with continuous side and end downward extensions b<1> at the edges engaging corresponding recesses in the vertical sides of the base-block a, and wires f are threaded transversely of the ribs c to secure the pad and also to reinforce the block a. The lower edges of the extension b<1> are sloped downwardly from the outside. Longitudinal beads are provided on the ribs to increase the keying effect. The blocks may be bedded as described in Specification 222,974.
Patent GB-719637-A (GB)
Title: Improved polymerised materials
Inventor: MILNE JOHN NOEL
IPC: C08F8/00
Filed: 1951-11-23
Abstract: A mixture of a polymer containing free nitrile groups, a polybasic acid, and a strong acid catalyst is subjected to heat, with or without pressure, whereby cross-linking by the formation of diacylamino groups occurs.  Polymers containing free nitrile groups are those of acrylonitrile, methacrylonitrile, crotononitrile, cinnamonitrile, chloracrylonitrile, maleonitrile, fumaronitrile, and their copolymers with butadiene, vinyl formate, acetate, propionate, butyrate, and stearate, the esters of allyl, methallyl, ethallyl, chlorallyl, crotonyl, and cinnamyl alcohols, and but-1-ene-3-ol and pent-1-ene-3-ol, with formic, acetic, lactic, butyric, oleic, glycollic, salicylic, benzoic, and phthalic acids, methyl, ethyl, isopropyl, and butyl vinyl ketones, allyl substituted aldehydes and ketones, methyl, ethyl, isopropyl, butyl, phenyl, tolyl, and naphthyl vinyl and propenyl ethers, allyl ethers, isobutylene, styrene, alphamethyl styrene, N-vinyl urethanes, carbazole, pyrrole, piperidine, and pyrrolidone, and allyl acetals and ketals; also employed may be polymers obtained by condensing a polycarboxylic acid with a polyhydric alcohol containing a free nitrile group.  Polybasic acids specified are adipic, pimelic, suberic, azelaic, sebacic, tricarballylic, citric, and aconitic acids, and polymers and copolymers of unsaturated carboxylic acids such as acrylic, maleic, and fumaric acids, e.g. a copolymer of acrylic acid and styrene. Strong acid catalysts specified are phosphoric, paratoluene sulphonic, camphoryl sulphonic, and trichloracetic acids, and compounds which give rise to acid under reaction conditions, e.g. butadiene sulphone.  The process is preferably carried out at a temperature of 100 DEG  to 200 DEG C., and may be used in the manufacture of tiles.
Patent GB-196308-A (GB)
Title: Improvements in and relating to the suspension of incandescent filaments in thermionic valves and the like
IPC: H01J1/18
Filed: 1921-10-18
Abstract: 196,308. Mullard, S. R., and Mullard Radio Valve Co., Ltd. Oct. 18, 1921. Vacuum tubes.-The tension of a filament of a thermionic valve is adjusted and indicated by varying the tension or compression of a spring or its equivalent until a point on a movable element, such as the spring or a part attached thereto, bears a definite relationship to a fixed point. As shown in Fig. 1, the tension on a filament 5 is adjusted by increasing the tension on a helical spring 10 connected thereto by a hooked link 12 until the end of the spring registers with a wire gauge 13 secured to the foot 2 carrying the spring. The other end of the spring is secured through a hole 11 in the foot. The end of the gauge may be bent so that it just touches the top of the helix when the correct tension is applied; or the gauge may consist of an extension of, or a wire attached to, the grid 7, or of a glass or silica lug on the foot. In a modification, the gauge is bent to form a loop through which the link passes so that the spring cannot be extended beyond the loop; or the same result may be obtained by passing the link through a hole in a disc, or by means of a flexible wire connected between the ends of the spring. In the arrangement shown in Fig. 7, the end 17 of the stem 2 is made hollow to receive the spring 16, and at the correct tension the top of the spring is compressed against a flange 18. A similar arrangement may be used with a spring in tension. The gauge may be calibrated.
Patent GB-206512-A (GB)
Title: Improved manufacture of condensation products from formaldehyde and urea, thio-urea or their derivatives
IPC: C08G12/38
Filed: 1923-07-23
Abstract: In the manufacture of condensation products from formaldehyde and urea, thio-urea, or their derivatives, the formation of cloudiness in the hardened material is controlled or prevented by the addition of "salt-like" electrolytes to the intermediate condensation products. The activity of the electrolytes follows approximately the sequence of Hofmeister's ion series; that is to say, for a constant anion, the clarification increases from left to right with the cations in the order F1, Al, K, NH4, Cu, Mg, Zn, Ca, Na, whilst for a constant cation, the anions take the following sequence for increasing clarification, sulphate, citrate, oxalate, acetate, chlorate, chloride, carbonate, nitrate, bromide, cyanide, thiocyanate, iodide, salicylate. According to the examples, (1) urea is condensed with formaldehyde solution in the presence of hexamethylenetetramine as far as the formation of the clear initial product, which is concentrated in vacuo after adding sodium acetate to prevent premature gelatinization; the acidity is determined by titration and the calculated amount of melamine or urea, in addition to the urea required to bind the free formaldehyde, is then added; the products is hardened in a mould by heat treatment to a cloudy mass; a transparent material is obtained, however, when sodium chloride, calcium chloride, sodium salicylate or potassium iodide is added prior to the hardening treatment; (2) urea is condensed with formaldehyde solution in the absence of a condensing agent, urea and pyridine are then added to the concentrated initial condensation product; the material becomes cloudy on hardening, but is clarified by the addition of sodium chloride during the treatment. Specifications 157,416, 171,094, 181,014, 193,420 and 201,906 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the prevention of cloudiness by maintaining an incomplete neutralization of the hydrogen ions; this subject-matter does not appear in the Specification as accepted.
Patent GB-243157-A (GB)
Title: Improvements in the construction of shallow draft vessels
IPC: B63B1/12
Filed: 1924-11-19
Abstract: 243,157. Hill, H. C. Nov. 19, 1924. Hulls.-In shallow draught vessels, the bottom is formed with a central archway c running from bow to stern thus forming a semi-twin hull with twin sterns and stern posts and two rudders. A central keelson a extends longitudinally of the hull and forms a watertight bulkhead to which the frames or transverse bulkheads are attached. the latter being watertight and extending to the deck. A paddle wheel may be disposed in the central archway c.
Patent GB-350347-A (GB)
Title: Improvements in cord or rope braiding machines
IPC: D04D1/00
Filed: 1930-09-18
Abstract: 350,347. Braiding-machines. AUSTIN & SONS, Ltd., J., Crumpsall Mill, Lower Crumpsall, Manchester. Sept. 18, 1930, No. 2787:.. Convention date, Aug. 2. [Class 74 (i).] In a machine for making braided cord or rope, wherein the bobbin carriers 7 are engaged and held temporarily by notches 13 spaced around a fixed annular plate 12 so that they can be engaged periodically by a series of revolving notched discs 1, 2, 3 carried by a rotating table 19, a double-nosed cam 10 is provided upon each carrier 7 to engage with cam surfaces 11 secured to the revolving table for directing the carrier into engagement with a disc 1, 2, 3 for a single revolution of the disc, and thereafter depositing it into a notch in the fixed plate 12. The bobbin carriers may be hollow to provide for a central core or strand.
Patent GB-1517192-A (GB)
Title: Rotary harrows
IPC: A01B33/14
Filed: 1975-07-02
Abstract: 1517192 Rotary soil cultivating implements C VAN DER LELY NV 2 July 1975 [25 July 1974] 27926/75 Heading A1B [Also in Division F2] A shear pin 49 connects the tine support 36 to a projection 31 secured to a driven shaft 2; after fracture of the shear pin 49, the support 36 can rotate about the shaft 2 but is axially retained on the shaft 2. In Fig. 5 and 6, the shear pin 49 is advanced after fracture by a spring 52 until its flange 51 abuts the shoulder of bore 50, to be entrained in one of the recesses 54 formed in the sides of the projection 31, so that rotation of the tine support 36 is resumed. The shearedoff end of the pin 49 may be pushed from a sleeve 41 via an opening 42, and the pin 49 re-engaged in the sleeve 41. The spring 52 is clamped in the plug 53. In Figs. 2 and 4 (not shown), the shear pin 49 is disposed in a blind bore in the support 36, and falls out of the bore when fractured since the pin 49 has no flange 51.
Patent GB-363407-A (GB)
Title: Improvements in or relating to means of communication with submerged vessels
IPC: G01S1/72
Filed: 1930-09-18
Abstract: 363,407. Signalling to and from submerged vessels. SUBMARINE SIGNAL CO., 160, State Street, Boston, U.S.A.- (Assignees of Russell, P. T. ; 3900, 31st Street, Mount Rainier, Maryland, U.S.A.) Sept. 18, 1930, No. 27933. Convention date, Oct. 9, 1929. [Class 118 (ii).] Comprises an underwater sound producer or receiver which is lowered from the surface of the water to be attached to the submerged vessel and is provided with means for connection with a source of power exterior to the submerged vessel for operating the sound producer or receiver. A watertight casing is made up of two parts 11, 12 bolted together with a gasket 18 between flanges 13, 14. Oppositely disposed diaphragms 26 are bolted to bosses 22, 24 surrounding holes in the casing sections. An annular shell 60 is formed by units 30, 31 held together by studs 33, 34 which also secure the shell to flanges 32. Integral with the units are polepieces 35, 36 between which and the shell 60 is a direct current coil 38 which when energized polarizes the pole-pieces. The diaphragms 26 are actuated by an armature which has a thin non-metallic tube 40 on which are wound oppositely two similar alternating current coils 41, 42 connected at the middle. The tube is provided with an iron core 44. Suitably spaced electromagnetic coils 48 are also provided in the casing. The device is connected up to a vacuum tube transmitter and receiver (not shown) by wires connected to insulated terminals for the various coils, and passed through a common stuffing box. In use the device is suspended by a hook engaging the eye 57 and is lowered into the water, the coil 38 being energized to find the sunken object. When located, the alternating current coils are energized and talking between the set to which the device is connected and the submarine may proceed.
Patent GB-755185-A (GB)
Title: Extrusion apparatus
IPC: B29C48/69
Filed: 1954-09-28
Abstract: 755,185. Extrusion apparatus. CELANESE CORPORATION OF AMERICA. Sept. 28, 1954 [Sept. 29, 1953], No. 27965/54. Class 87(2) A filter 24, for removing lumps &c. from plastic material before the material reaches the die 12, is disposed within a plug 22 fitting in a box 21 in a conduit 16; and when the filter is to be changed the plug is pulled upwardly out of the bore and another plug having a clean filter is fitted into the bore. As shown, the plug and the bore are frusto-conical. The plug is secured to the conduit by threaded bolts 34 which bear on C-washers 35 which are secured to the plug by bolts 36 and can be swung away horizontally from bolts 34 to release the plug. Pins 37 align the plug in the bore. If the plug sticks in the bore it may be freed by tightening a bolt 42 which is threaded into the plug but loose in a yoke 39 having set screws 41 which bear on pins 37. The filter, which comprises a plate 25 and three screens 27, 28, 29. is positioned in a passage 23 in the conduit, this passage having a polygonal cross-section at 33 to prevent the filter rotating. The filter bears against a shoulder 31 in the conduit and is held in place by a snap ring 32
Patent GB-1344554-A (GB)
Title: Closure for a bearing housing
IPC: F16J13/00
Filed: 1972-06-15
Abstract: 1344554 Bearing housing closure G SCHAFER [trading as KUGELFISCHER GEORG SCHAFER & CO] 15 June 1972 [10 July 1971] 27984/72 Heading F2A A closure for a divided bearing housing 1 comprises a disc 7 of die-cast plastics material having a rim which is U-shaped in cross-section so that the arms 9, 10 of the U lie in planes parallel to the plane of the disc, the arms being resilient and of equal length, the length being greater than the distance between the arms. The inner flanks of the U are preferably parallel and the outer flanks taper towards one another in the radially outward direction. The bearing housing in which the closure is received has a groove in which the limbs are inserted, the groove having tapered sides.
Patent GB-173335-A (GB)
Title: An apparatus for slewing railway junctions, railway lines and the like
IPC: E01B33/04
Filed: 1920-10-04
Abstract: 173,335. Gwilliam, J., and Hill, H. Oct. 4, 1920. Jacks.-The base of the jack described in Specification 705/87 is supported by a pair of parallel bars A mounted on the axles of rollers I. The bars are traversed by a screw B mounted in the base-plate C and engaging nuts H, H<1> formed integrally with the axles of the rollers I. Detachable spikes P may be used to prevent movement of the base-plate.
Patent GB-261039-A (GB)
Title: Improvements in the preparation of floor and boot and the like polishes
IPC: C09G1/08
Filed: 1926-11-08
Abstract: 261,039. I. G. Farbenindustrie Akt.- Ges. Nov. 9, 1925, [Convention date]. Cleansing-compositions; motor spirit; fats and fatty oils, extracting by solvents.-The Specification as open to inspection under Sect. 91 (3) (a) describes the use of the liquid hydrocarbons obtained by the destructive hydrogenation of coals. tars, mineral oils, or other carbonaceous materials as dissolving or distributing agents in solutions, pastes, emulsions, or other compositions. The cracked, polymerization, dehydrogenation, or demethylation products may equally be used. In examples : (1) a benzine obtained by the destructive hydrogenation of lignite tar is mixed at 20‹ C. in any proportion with methanol to form a fuel for internal-combustion engines, (2) homogeneous mixtures of such a benzine and 92.5 per cent ethyl alcohol are obtained containing up to 84 per cent of benzine. The hydrocarbons, the above conversion products, or the mixtures forming pastes, &c. may be used for example for dry cleaning and in the manufacture of soaps, cleansing agents, and emulsions for the textile industries. This subject-matter does not appear in the Specification as accepted.
Patent GB-228629-A (GB)
Title: A trainer for operatic and toe-point dancing
IPC: A43B5/12
Filed: 1923-11-08
Abstract: 228,629. Helsham, A. P., and Skelton, F. D. Nov. 8, 1923. Teaching dancing.-A trainer for operatic and toe-point dancing consists of a shoe z of metal, vulcanite, wood, &c. which is formed from a plaster cast of the user's toes and pads of the feet, and has lugs a, b, c to which is secured a balance step d of three-ply wood. The trainer is attached to the foot by means of a sandal e and a strap f, adapted to engage a heel-piece h. The step d is reduced in size as the pupil becomes efficient, and, finally, the step and the sandal are removed, and the lugs sawn or filed off, so that the shoe z can be inserted into the toe of a ballet or like slipper.
Patent GB-727874-A (GB)
Title: Improvements in domestic scouring devices
IPC: A47L13/03
Filed: 1953-10-13
Abstract: 727,874. Cleaning-pads. COUESNON, F. A., and GLADDISS, P. G. Feb. 1, 1954 [Oct. 13, 1953], No. 28145/53. Class 19. [Also in Group VI] A scouring pad to contain soap is made from a knitted tube 1 of metal, plastic, &c. wire constricted by an elastic band 4 and rolled up on itself inside out as in Fig. 2 and is then rolled down from 2 as in Fig. 3 whereby the elastic band 4 allows the middle to be pulled open to insert a piece of soap. The rolled-over upper part 2 is secured by stitching at 6. In Fig. 4 the lower open end 9 of a tube, partially closed by an elastic band 4 is rolled over outwardly and upwardly upon itself as in Fig. 5 until its upper stitched end 8 is finally pushed inside the roll up and inside the band 4 through which soap can be passed. Another modification is like Fig. 1 but the end 2 is closed by stitching which passes inside as the elastic band is stretched to receive the rolling.
Patent GB-1112462-A (GB)
Title: Continuous polyurethane process
IPC: C08G18/08
Filed: 1966-06-23
Abstract: Fibre-forming polyurethane elastomers are prepared by a continuous process as described and claimed in Patent No. 1,054,165, with the modification that a proportion of an acid having an ionization constant of at least 1.1 x 10-5 is added to the prepolymer or to the glycol or diisocyanate reactants from which the prepolymer is formed. The acid may be acetic, propionic, butyric, valeric, phosphoric or hydrochloric acid.
Patent GB-874844-A (GB)
Title: Improvements in or relating to the winding of cops with reserve coils
IPC: B65H67/06
Filed: 1957-09-09
Abstract: 874,844. Packaging. REINERS, W. Sept. 9, 1957,[Sept. 22, 1956], No. 28335/57. Class 94(1). [Also in Group IX] In Fig. 10, wound bobbins supplied from a winding machine 32 are packed into partitioned containers 38 after being provided with supplementary windings at 45. Unsatisfactory cops having been rejected, satisfactory ones are taken by a conveyer 33 to a point where they are pushed into the container by one arm of a bell-crank 36 operated by a cam 37, the conveyer being intermittently operated by a second cam 371 through pawl-and-ratchet mechanism. When one section of the container is filled, contacts 55, 56 are closed to energize an electromagnet 52 to move a link 51 into the position shown in full lines so that a projection 53 is engaged by a lever 54 oscillated by cam 37 whereupon an arm 50 is moved to bring another partition beneath bell-crank 36. Cam 371 also operates a link 42 in timed relation with the movement of the conveyer to release the pivots of the head 45. When completely filled, the containers are moved along to make way for another container pushed into place from the side. A similar arrangement is described in which fresh container is pushed into place from above.
Patent GB-931120-A (GB)
Title: Improvements in and relating to diesel electric propulsion of trawlers and like vessels
Inventor: SMITHSON JOHN GOAD
IPC: B63H23/24
Filed: 1958-09-04
Abstract: 931,120. Transmitting mechanical power. BRUSH ELECTRICAL ENGINEERING COLtd. Aug. 25, 1959 [Sept. 4, 1958], No. 28407/58. Class 38 (4). A diesel-electric installation for a trawler comprises engines a, b, coupled to generators c, d, each comprising two machines built as a single unit and adapted to supply a winch motor e and two propulsion motors f, g. One of the sections c<SP>2</SP> or d<SP>2</SP> of the generators is adapted to supply the winch motor, the other section then being series-connected with sections c<SP>1</SP>, d<SP>1</SP> to supply the propulsion motors. Alternatively, all the sections c<SP>1</SP>-d<SP>2</SP> may be seriesconnected to supply the propulsion motors, the winch motor then being disconnected. The field systems for the generators comprise self-excited windings h, separately excited windings i, and opposing series windings f to provide a falling voltage-current characteristic. The series windings may be provided with taps which are used when the generator supplies the winch motor. Interlocking devices allow only one machine at a time to feed the winch motor, the separately excited field winding of the winch generator being transferred to the winch controller for Ward Leonard control. In changing over the use of a generator section from one purpose to another, its characteristic may be changed from level compounding to a falling voltage current characteristic.
Patent GB-1360492-A (GB)
Title: Alloys
IPC: C22C21/00
Filed: 1972-09-13
Abstract: 1360492 Bearing alloys J J STOBD 13 Sept 1972 [17 June 1971] 28412/71 Heading C7A Bearing alloy compositions comprises 80-97% of Al and impurities and incidental amounts of Cu and Ni the balance being lead rich and being one of the following